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Influence of different frequencies of transcutaneous electrical nerve stimulation on the threshold and pain intensity in young subjects

机译：不同频率的经皮神经电刺激对年轻受试者阈值和疼痛强度的影响

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Objective To investigate the effects of different transcutaneous electrical nerve stimulation frequencies in nociception front of a pressure pain threshold and cold in healthy individuals.Methods Twenty healthy subjects were divided into four groups, all of which have gone through all forms of electrical stimulation at different weeks.Assessments were pre and post-therapy, 20 and 60 minutes after stimulation. To evaluate the pressure pain threshold, an algometer was used with one tapered tip, pressing the hypothenar region until voluntary report the word “pain”. Cold pain intensity was assessed by immersion in water at 5°C for 30 seconds; at the end, the subject was asked to quantify the pain intensity on a Visual Analog Scale for Pain. For electrical stimulation, two electrodes were used near the elbow, for 20 minutes, with an intensity strong, but not painful. The frequency was in accordance with the group: 0Hz (placebo); 7Hz; 100Hz; and 255Hz.Results Both for the assessment of pressure pain threshold as the cold pain intensity, there was no significant difference (p0.05).Conclusion We conclude that the use of transcutaneous electrical nerve stimulation on dermatomes C6 to C8 produced no significant change in pressure pain threshold or cold discomfort.
机译：目的探讨不同的经皮电神经刺激频率对健康人的压力痛阈的伤害感受和感冒的影响。方法将20名健康受试者分为四组，所有组均在不同星期经历了各种形式的电刺激。在刺激前后20分钟和60分钟进行治疗前后的评估。为了评估压力痛阈值，使用一个带有一个锥形尖端的血压计，按压假体区域直到自愿报告“疼痛”一词。通过在5°C的水中浸泡30秒评估冷痛强度;最后，要求受试者在视觉模拟疼痛量表上量化疼痛强度。为了进行电刺激，在肘部附近使用了两个电极，持续20分钟，强度很强，但并不痛苦。频率符合组：0Hz（安慰剂）; 7赫兹; 100Hz;结果和在255Hz时均为255Hz。结果两者均以冷痛强度作为压力痛阈值的评估，差异无显着性（p> 0.05）。结论我们得出结论，在皮囊C6至C8上使用经皮电神经刺激后，皮损无明显变化。压力疼痛阈值或感冒不适。

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